Well-flowing device



April 21, 1925. 1,534,717

. I G. KAHLE WELL FLOWING DEVICE Fil p l 12. 1924 Patented Apr. 21, 192 5. I

UNITED STATES PATENT OFFICE.

GLEN KAHLE, OEF DALLAS, TEXAS.

wnrarrrowrne nnvron Application filed April 12, 1924. Serial No. 706,093.

My invention relates to new and useful improvements 1n well flowing devices; and

the object is to utilize the natural gas pressure for elevating the oil from oil wells and to relieve the weight and friction of the moving column of oil in the tubing above the flowing device. There is an enormous weight distributed through the rods, beam,

.belt, entirely through to the engine and there is enormous weight in a column of oil and a tremendous strain is necessarily incurred .on all the pumping equipment. A considerable amount of the weight and the friction caused by all these elements is relieved by the use of the improved flowing device hereinafter described. Other objects and advantages will be fully explained in the following descriptionand the invention will be more particularly pointed out in the claims.

Reference is had to the accompanying drawings which form a part of this application.

Fig. 1 is a side elevation of the flowing device, as usually mounted in a well. Fig; 2 is an enlarged side elevation at right angles to the'view shown in Fig. 1. Fig. 3 is a vertical section of the same, as shown in Fig. 1 except that Fig. 3 is an enlarged view. Fig. 4 is a'plan view of the device as shown 1n Fig. 3.

Similar characters of reference are used to indicate the same parts throughout the several views.

The drawings show the flowing device 10 which may be of forged steel or other suitable metal. This flowing device is provided with a vertical passage 11 therethrough and the passage is threaded interiorly for the receivin the ends of the tubing which are threade The flowing device is thus interposed in the well tubing or pipe. The connection of the tubing 12 to the flowing device may be accomplished in any other suitable manner. At the other side of the flowing device, there is a c lindrical chamber 13, having a reduced in et port 14 at the bottom. The upper end of the chamber 13 is internally threaded to receive a closure plug 15. The chamber 13 and the passage 11 are separated by a partition wall 16. Acress to the chamber 13 may be had by unscrewing the plug 15.

In the chamber 13 are mounted standing valves 17 which have balls 18 and packing members 20. The two valves are operatively connected and it is apparent that the number of such valves may be varied. The valves with their packing members fill the part of the chamber 13 in which they operate. Gas rising up through the inlet 14 will lift the valves 18. Above the valves, there are passages 19 so that gas will escape from the chamber 13 and engage the oil which is passing upwardly through the passage 11 to aid in lifting the oil upwardly.

A stem 21 projects from the plug 15 for regulating the height to which valves might rise. Without this stem, the valves might rise and close the passages 19. The passages or ports, 19 being restricted, the ca acity of these passages will be less than t e capacity of the inlet 14 and the pressure of the gas will be increased and the passage of the gas through the plurality of openings 19 will break up the gas and the oil will more readily absorb the gas and the velocity of the oil and gas will be increased. The aerated condition of the oil will facilitate the dropping of the rods or wire line while pumping. This will get more revolutions per minute than if dropping the rods in unaerated oil which would tend to float the rods or wire line. By locating the valves in an entirely separate chamber, an effectual provision is made to revent the oil in the tubing above flowing evice from going back into the well and the gas escaping through the restricted openings or ports will aerate the oil inside of the. passage 11 and the well tubing and so reduce the weight and the friction of the column of moving oil in the tubing above the flowing device and at the same time a suction is created below the flowing device, drawing oil and forcing it upwardly. By forcing the gas to enter the cups. By locating the flowing device above the working barrel, the flowing device will be near the fluid level when all the tubing is in the well. When the gas pressure accumulates sufliciently in the well outside of the tubing, it will enter the port 14, rise up and lift the valves 18 and escape into the oil passage through the ports 19 and tend to displace the 011 in the tubing and force the same upwardly.

The flowing device is cut away on the sides at 22 to adapt the flowing device to be engaged by an operating tool and inclined shoulders 23 are made so that the flowing device can be engaged by grabs in case of accidental losing of the flowing device in the well.

With a flowing device of the kind herein described, no packer or packing in the well above the device is necessary. The flowing device works satisfactorily just as shown.

It is apparent that various changes in the sizes, proportions and construction of the several parts may be made without departing from my invention.

What I claim, is,-

1. A well flowing device comprising a body having a pumping passage-way therethrough and sections of well tubing communicating with said passage-way, said body having a cylindrical chamber spaced from said passage-way and provided with an inlet for gas, valves mounted in said chamber, said body having a plurality of gas passages from said chamber to said passage-Way of smaller capacity than the caand means for prepacity of said inlet port,

and choking venting said valves rising up said small passages.

2. A well flowing device comprising a body having a pumping passage-way therethough and threaded at the ends to receive ends of sections of well tubing thereby forming a continuous passage-Way for flowing liquids upwardly and having a gas chamber spaced from said passage way and provided with an inlet port, valves mounted in said gas chamber, the partition between said chamber and passage having a plurality of small ports of less capacity than said inlet port, and a plug closing the upper end of said gas chamber and provided with a stem for preventing said valves from closing said small ports.

3. A well flowing device comprising a cylindrical body having an oil passage there through and threaded to receive the ends of well tubing sections and having two sides flattened for an engaging tool and having inclined shoulders for a grabbing tool an having a gas chamber and a partition spacing the gas chamber from said oil passage, said partition having a plurality of small ports leading from said gas chamber to said oil passage, valves mounted in said gas chamber, and a plug closing said gas chamber and provided with a stem for preventing said valve from closing said small ports.

In testimony whereof, I set my hand, this 3rd day of April, 1924.

GLEN KAHLE. 

